Svendus,
The clouds are natural at early spring and I must say we have that often here in Niort

No extraordinary configs here. Canon 60D. Bracket -2, 0, +2. A manfrotto pole at around 5 meters. A cheap wireless trigger. Samyang 8 mm and a warm cloudy day with lots of people visiting the new garden.
Here's another lots of clouds pano for a project I'm doing. It's one of the oldest and last tiles factory dating 1880.
For this I used Magic Lantern for bracketting.
http://www.fnd-fnd.com/media/tuilerievictot2. I also use Weye Feye to control bracketting from my iPad for some other projects >
http://www.fnd-fnd.com/media/bloc . I have lots of problem for the lightings. tungsten, fluorescent and LED all at the same time. I guess it's acceptable at the end. Well, we all need to learn something new everytime

Thanks for the comment.
Cheerio
Affendy